If you've ever had someone come up to you and say that "the mass is an abomination" or that it's all unscriptural, well, here is your proof that they are wrong. Below are all of the parts of the Mass and where they are located in the Bible. Many thanks to the Pillar of Truth for providing this information.

The Introductory Rites of the Mass

Priest: In the name of the Father, and of the Son, and of the Holy Spirit (cf. Mt. 28:19).

Congregation: Amen (cf. 1 Chr. 16:36).

Greeting by Priest

[Form A] The grace of our Lord Jesus Christ and the Love of God and the fellowship of the Holy Spirit be with you all (cf. 2 Cor.13:13).

[Form B] The grace and peace of God our Father and the Lord Jesus Christ be with you (cf. 1 Pet. 1:3).

[Form C] The Lord be with you (cf. Ruth 2:4).

Penitential Rite

Priest and Congregation: I confess to almighty God, and to you, my brothers and sisters, that I have sinned through my own fault (cf. James 5:16) in my thoughts and in my words (Rom. 12:16; James 3:6) in what I have done, and in what I have failed to do; (James 4:17) and I ask Blessed Mary, ever virgin, all the angels and saints, and you, my brothers and sisters, to pray for me to the Lord our God (cf. 1 Thess. 5:25).

Priest: May almighty God have mercy on us, forgive our sins, and bring us to everlasting life (cf. 1 Jn. 1:9).

Priest and Congregation: Glory to God in the highest, and peace to his people on earth (cf. Lk. 2:14). Lord God, heavenly King, almighty God and Father, (Rev. 19:6) we worship you (Rev. 22:9), we give you thanks (Eph. 5:20), we praise you for your glory (Rev. 7:12). Lord Jesus Christ, only Son of the Father (2 Jn. 3), Lord God, Lamb of God, you take away the sin of the world: have mercy on us (cf. Jn. 1:29); you are seated at the right hand of the Father: receive our prayer (Rom. 8:34). For you alone are the Holy One (cf. Lk. 4:34), you alone are the Lord (Rev. 15:4), you alone are the most High, Jesus Christ (Lk. 1:32), with the Holy Spirit, in the glory of God the Father. Amen (cf. Jn. 14:26).

Profession of Faith

Priest and Congregation: We believe in God, the Father, Almighty, maker of heaven and earth (cf. Gen. 14:19), of all that is seen and unseen (Col. 1:16). We believe in one Lord, Jesus Christ, the only Son of God, eternally begotten of the Father (Lk. 1:35), God from God, Light from Light, true God from true God, begotten, not made, one in Being with the Father (Heb. 1:3). Through him all things were made (Jn. 1:1-4). For us men and for our salvation he came down from heaven (cf. Jn. 3:13): by the power of the Holy Spirit he was born of the Virgin Mary, and became man (cf. Mt. 1:18). For our sake he was crucified under Pontius Pilate (Jn. 19:16); he suffered, died, and was buried. On the third day he rose again in fulfillment of the Scriptures (cf. 1 Cor. 15:3); he ascended into heaven (cf. Lk. 24:51) and is seated at the right hand of the Father (cf. Col. 3:1). He will come again in glory to judge the living and the dead (cf. 2 Tim. 4:1), and his kingdom will have no end (Lk. 1:33). We believe in the Holy Spirit, the Lord, the giver of Life (Acts 2:17), who proceeds from the Father and the Son. With the Father and the Son he is worshiped and glorified (Jn. 14:16). He has spoken through the Prophets (1 Pet. 1:10-11). We believe in one holy catholic and apostolic Church (cf. Rom. 12:5). We acknowledge one baptism for the forgiveness of sins (Acts 2:38). We look for the resurrection of the dead, and the life of the world to come. Amen (cf. Rom. 6:5).

Liturgy of the Eucharist

Priest: Blessed are you, Lord, God of all creation. Through your goodness we have this bread to offer, which earth has given and human hands have made (cf. Qo 3:13). It will become for us the bread of life (cf. Jn. 6:35). Blessed are you, Lord, God of all creation. Through your goodness we have this wine to offer, fruit of the vine and work of human hands. It will become our spiritual drink (cf. Lk. 22:17-18).

Congregation: Blessed be God forever (cf. Ps. 68:36).

Priest: Pray, brethren, that our sacrifice may be acceptable to God, the almighty Father (cf. Heb. 12:28).

Congregation: May the Lord accept this sacrifice at your hands for the praise and glory of his name, for our good and the good of all his Church (cf. Ps. 50:23).

Eucharistic Prayer

Priest: Lift up your hearts.

Congregation: We lift them up to the Lord (Lam. 3:41).

Priest: Let us give thanks to the Lord our God (Col. 3:17).

Congregation: It is right to give him thanks and praise (Col. 1:3).

Preface Acclamation

Priest and Congregation: Holy, holy, holy, Lord, God of power and might, heaven and earth are full of your glory. Hosanna in the highest. Blessed is he who comes in the name of the Lord. Hosanna in the highest (cf. Is. 6:3; Mk. 12:9-10).

Eucharistic Prayer I

We come to you, Father, with praise and thanksgiving, through Jesus Christ your Son (cf. Eph. 5:20). Through him we ask you to accept and bless these gifts we offer in you in sacrifice (cf. 2 Macc. 1:26). We offer them for your holy Catholic Church, watch over it, Lord, and guide it; grant it peace and unity throughout the world. We offer them for N. our pope, for N. our bishop, and for all who hold and teach the Catholic faith that comes to us from the apostles (cf. Jn. 17:21; Acts 2:42).

Remember, Lord, your people, especially those for whom we now pray, N. and N. Remember all of us gathered here before you. You know how firmly we believe in you and dedicate ourselves to you. We offer you this sacrifice of praise for ourselves and those who are dear to us. We pray to you, our living and true God, for our well-being and redemption (cf. Ps. 106:4; Heb. 13:15).

In union with the whole Church, we honor Mary, the ever-virgin mother of Jesus Christ our Lord and God. We honor Joseph, her husband, the apostles and martyrs, Peter and Paul, Andrew…and all the saints. May their merits and prayers gain us your constant help and protection (cf. Mt. 1:2-16; Lk. 16:9; 1 Cor. 12:12, 20f; Rev. 5:8).

Father, accept this offering from your whole family. Grant us your peace in this life, save us from final damnation, and count us among those you have chosen (cf. Col. 1:11).

Bless and approve our offering; make it acceptable to you, an offering in spirit and in truth (Jn. 4:24).

Let it become for us the body and blood of Jesus Christ, your only Son, our Lord.

The day before he suffered he took bread in his sacred hands and looking up to heaven, to you, his almighty Father, he gave you thanks and praise. He broke the bread, gave it to his disciples, and said: Take this, all of you, and eat it: this is my body which will be given up for you (cf. Mt. 26:26-28).

When supper was ended, he took the cup. Again he gave you thanks and praise, gave the cup to his disciples, and said: Take this, all of you, and drink from it: this is the cup of my blood, the blood of the new and everlasting covenant. It will be shed for you and for all so that sins may be forgiven. Do this in memory of me (Mt. 26:26-28).

Father, we celebrate the memory of Christ, your Son. We, your people and your ministers, recall his passion, his resurrection from the dead, and his ascension into glory; and from the many gifts you have given us we offer to you, God of glory and majesty, (cf. 1 Pet. 1:18-21) this holy and perfect sacrifice (Heb. 9:13-14): the bread of life and the cup of eternal salvation (Jn. 6:54).

Look with favor on these offerings and accept them as once you accepted the gifts of your servant Abel (Gen. 4:4), the sacrifice of Abraham, our father in faith (Gen. 22:12), and the bread and wine offered by your priest Melchisedech (Gen. 14:18).

Almighty God, we pray that your angel may take this sacrifice to your altar in heaven (cf. Rev. 8:3-4). Then, as we receive from this altar the sacred body and blood of your Son, let us be filled with every grace and blessing (cf. Eph. 1:3).

Remember, Lord, those who have died and have gone before us marked with the sign of faith, especially those for whom we now pray, N. and N. May these, and all who sleep in Christ, find in your presence light, happiness, and peace (cf. 1 Thess. 4:13, 14).

For ourselves, too, we ask some share in the fellowship of your apostles and martyrs, with John the Baptist, Stephen, Matthias, Barnabas…Felicity, Perpetua, Agatha… and all the saints (cf. Col. 1:12).

Though we are sinners, we trust in your mercy and love. Do not consider what we truly deserve, but grant us your forgiveness (cf. Ps. 25:7).

Through him you give us all these gifts. You fill them with life and goodness, you bless them and make them holy (Ps. 104:27-28).

*The following Eucharistic prayers find their expressions in the following Scripture passages:

Priest: Through him, with him, in him, in the unity of the Holy Spirit, all glory and honor is yours, almighty Father, for ever and ever.

Amen (cf. Rom. 11:36).

Communion Rite

Priest and Congregation: “Our Father” (cf. Mt. 6:9-13).

Priest: Deliver us, Lord, from every evil, and grant us peace in our day. In your mercy keep us free from sin and protect us from all anxiety as we wait in joyful hope for the coming of our Savior Jesus Christ (Jn. 17:15).

Congregation: For the kingdom, the power, and the glory are yours, now and for ever.

Priest: Lord Jesus Christ, you said to your apostles: I leave you peace, my peace I give you. Look not on our sins, but on the faith of your Church, and grant us the peace and unity of your kingdom where you live and reign for ever and ever (Jn. 14:27). The peace of the Lord be with you always (cf. Jn. 20:19).

Breaking of the Host

Priest and Congregation: Lamb of God, you take away the sins of the world, have mercy on us…. Lamb of God, you take away the sins of the world, grant us peace (cf. Jn. 1:29).

Communion

Priest: This is the Lamb of God who takes away the sins of the world. Happy are those who are called to his supper (Rev. 19:9).

Priest and Congregation: Lord, I am not worthy to receive you, but only say the word and I shall be healed (cf. Mt. 8:8).

Dismissal

Priest: The Lord be with you.

Congregation: And also with you (cf. Ruth 2:4).

Priest: May almighty God bless you, the Father, and the Son, and the Holy Spirit (cf. Lk. 24:51). Go in the peace of Christ (cf. Lk. 7:50; 2 Chron. 35:3).